Turkey shot down a Russian warplane that it said ignored repeated warnings and crossed into its airspace from Syria, killing at least one of the two pilots.

It was a long-feared escalation in tensions between Nato and Russia, with President Vladimir Putin denouncing a "stab in the back" and warning of "significant consequences". It was the first time in half a century that a Nato member has downed a Russian plane and prompted an emergency meeting of the alliance.

A white Chicago police officer who shot a black teenager 16 times last year was charged with murder, hours before the city released a video of the killing that many people fear could spark unrest. City officials and community leaders have been bracing for the release of the dashboard-camera video, fearing the kind of unrest that occurred in cities such as Ferguson, Missouri, after young black men were killed by police or died in police custody. A judge ordered that the recording be made public. Moments before the footage was released, the mayor and the police chief appealed for calm.

An Irish woman who is a suspect in the brutal double murder of two north Dublin men has been arrested in South Africa in relation to an alleged hostage situation. Gardai want to question the woman and another man about the gun murders of best pals Eoin O'Connor (33) and Anthony Keegan (32) whose bodies were found on an island on Lough Sheelin, Co Meath, on May 26 last year, a month after they were reported missing. The female suspect was arrested by police yesterday afternoon for the alleged possession of a dangerous weapon.

Modular homes being provided to solve the homelessness crisis will cost more than building conventional homes, according to the Irish Daily Mail. The new prefab buildings planned for Dublin will cost €191,000 each, but the average cost of building a home under the social housing scheme is €11,000 less. Dublin City Council announced yesterday that it is to provide 22 of the modular homes in Poppintree, Ballymun, Dublin at a cost of €4.2m.

The former general secretary of the Irish Farmers' Association will be walking away from the embattled farm lobby body with a €2m pension pot, as a major review of pay and governance gets under way to try to tackle the fallout. It is also understood negotiations are continuing over any potential 'golden handshake' for Pat Smith after he resigned from his position after 25 years with the organisation last week. The executive, including the president Eddie Downey, deputy president Tim O'Leary and treasurer Jer Bergin have faced calls to step down from the national executive after it emerged Mr Smith earned almost €1m over two years.